Nine more surprising things about the royal baby's birth

. Credit: .

1. William and Kate DON'T know if it's a boy or girl

Despite plenty of speculation that the Duchess had accidentally revealed it was a girl.

2. The betting public think the royal baby will be a girl called Alexandra

According to Ladbrokes, a female royal baby is currently odds on at 2/5 while a boy is at 2/1.

At 4/1, Alexandra is the name favoured by punters ahead of Elizabeth (5/1) and Diana (6/1).

3. The birth will be announced on an easel

This is the easel that announced Prince William's birth in 1982. His first child's birth will be announced in the same way. Credit: Getty

4. The royal baby will be the country's 43rd King or Queen of England*

Henry VIII, left, was the 21st monarch. Credit: PA

*Since the Norman Conquest

5. The doctor overseeing the pregnancy is the former fiance of Jill Dando

Alan Farthing, right, worked alongside the doctor who delivered the two children of the Countess of Wessex, right. Credit: PA

Alan Farthing was engaged to TV presenter Jill Dando when she was shot and killed in 1999.

6. If they're paying, The Duke and Duchess' stay at their hospital could cost £12,000

The Prince and Princess of Wales leaving the Lindo Wing at St. Mary's Hospital after the birth of Prince William in 1982.. Credit: PA

A normal delivery package at the Lindo Wing including a one-night stay costs £4,965, with an extra night in a deluxe room costing £1,050, plus consultant's fees which can come to around £6,000, depending on the care required, meaning a two-night stay can cost more than £12,000.

7. Royals could be sipping complementary bubbly after the baby is born

Kate watched champagne smash against the hull of a ship last week - but she could be sipping it when the baby arrives. Credit: PA

The wing also offers a "comprehensive wine list should you wish to enjoy a glass of champagne and toast your baby's arrival".

8. William could be flying a helicopter when Kate goes into labour

Prince William shows his father around one of the Sea King helicopters he captains off Anglesey. Credit: PA

William will take paternity leave from his job as an RAF search and rescue helicopter pilot - thought to be two weeks - but could well be in the skies if Kate goes into labour early.

9. The royal baby pushes Prince Harry down to fourth in line to the throne

Harry is currently third in line to the throne. Credit: PA

Prince Harry falls behind the royal baby, Prince William and Prince Charles in order of succession, regardless of the gender of Kate's child.